I can't tell you my time in hours because I was not paying attention or tracking it that way. However, I got all 12 atmas in approximately 250 FATEs; actually a bit below that. That's probably a better way of tracking it anyway, considering two people can do a very different amount of work in the same time.

Quote Originally Posted by Calyanare View Post
About this same amount of time, but still 0 Atma. Zip. Zilch. Nada.
0 atma in 20 hours? You better recheck and make sure you've met all the qualifications, like fighting with your Zenith weapon equipped and having space in your inventory.